1. Proposed Specification Framework for TGac – Introductory Comments
Month Year
doc.: IEEE yy/xxxxr0
Proposed Specification Framework for TGac – Introductory Comments
Date:
Authors:
John Doe, Some Company

2. Introduction
This document describes some of the thinking behind the proposed specification framework document 11-09/0992r0.
What is the specification framework?
How does the specification framework evolve?
This document does not address the formal rules by which the specification framework document is modified
These should be addressed in the Selection Procedure (last revision: 11-09/0059r4)

3. What is the Specification Framework?
Provides the framework from which the draft amendment will be developed
It is a working document that will start out small, evolve and grow with group consensus
At some point, the document will include enough detail on features and architecture that the document can be frozen and work begin on the draft amendment itself
The scope of the work on the draft amendment is constrained to the features in the spec framework
A discussion of what features TGac supports occurs in the context of the specification framework document
All features should be present in the spec framework before work begins on the amendment

4. Evolving the Spec Framework (1)
The document begins with a small, core set of feature
i.e., the requirements with broad consensus
The document then evolves in two ways:
New features that have broad support are added
Detail is added

5. Evolving the Spec Framework (2)
Adding features:
The spec framework begins as a slim document
Features should be thoroughly vetted before addition to the spec framework
Features with a major impact on the system design should be investigated in detail in the ad-hocs
To gain an idea of complexity of the feature
To gain a good understanding of the performance benefit
Ultimately all features need to show a reasonable cost/benefit tradeoff

6. Evolving the Spec Framework (3)
Adding detail:
Feature requirements acquire more detail with time
This occurs as specific techniques are discussed and technology options explored
Some features are fundamental with other features dependent on the details
For example, information present in the preamble signaling field may need to be specified in detail since it impacts MAC protocol design (e.g. aggregation bit impacts use or normal ack and block ack)
Thus some parts of the spec framework may require significant detail while other parts do not